how can I conditionally load workspaces?

[ctfrancia]

ideally I would like this block of code to work:

return {
    "epwalsh/obsidian.nvim",
    version = "*",  -- recommended, use latest release instead of latest commit
    lazy = true,
    ft = "markdown",
    mappings = {
        -- Overrides the 'gf' mapping to work on markdown/wiki links within your vault.
        ["gf"] = {
            action = function()
                return require("obsidian").util.gf_passthrough()
            end,
            opts = { noremap = false, expr = true, buffer = true },
        },
        -- Toggle check-boxes.
        ["<leader>ch"] = {
            action = function()
                return require("obsidian").util.toggle_checkbox()
            end,
            opts = { buffer = true },
        },
        -- Smart action depending on context, either follow link or toggle checkbox.
        ["<cr>"] = {
            action = function()
                return require("obsidian").util.smart_action()
            end,
            opts = { buffer = true, expr = true },
        }
    },
    dependencies = {
        -- Required.
        "nvim-lua/plenary.nvim",

        -- see below for full list of optional dependencies 👇
    },
    opts = function()
        local username = vim.fn.system("whoami"):gsub("\n", "")
        local workspace

        if username:match("user1") then
            workspace = {
                name = "personal",
                path = "/path/to/new/vault1",
            }
        else
            workspace = {
                name = "work",
                path = "path/to/new/vault2",
            }
        end

        return {
            workspaces = {workspace},
        }
    end,
}

the error I get is:

E5113: Error while calling lua chunk: ...al/share/nvim/lazy/obsidian.nvim/lua/obsidian/client.lua:95: At least one workspace is required!
Please specify a workspace in your Obsidian.nvim config.

the reason i am trying to do this is because with these opts:

    opts = {
        workspaces = {
            {
                name = "personal",
                path = "path/to/personal",
            },
            {
                name = "work",
                path = "path/to/work",
            },
        },
    },

I get an error saying that it can't resolve path/to/personal which makes sense because that path only exists on my personal machine.

anyone have an idea?